Old PSU with haswell processor

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Quazar98

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Jul 21, 2013
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Hi
I am using old celeron based system. I am planning to updgrade to haswell.
Since I have everything in place, I am only left with RAM, CPU and motherboard.

Before buying, only question that I have is, Will my 250W old PSU will run my haswell system. PSU is around 3 years old.

I heard about C6/C7 states which needs to be disabled. Whats is that all about. Can anyone explain. plz

So, can I stay with old PSU???

Thanks
 
Solution
benjii


That motherboard will have a feature to disable C states. (I edited my post above in regards to the suitability of your PSU for a new build)
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benjii

benjii

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Oct 29, 2010
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Your PSU would be ok for a Haswell build. However, you're unlikely to be able to overclock or use a decent graphics card.

The C states are a low power/idle feature that just saves power when the CPU is idle. The only issue with older PSU's is that they aren't able to deliver stable voltages at that level and thus activate protections which result in you having to turn your PSU on and off.

It would cause no harm to your system but would obviously be annoying. To prevent it you can just turn off the C states in the bios so that issue never occurs. That way you can carry on using your old PSU.
 
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Q

Quazar98

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Jul 21, 2013
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10,510


So I can use my old PSU, Thanks.
I am going with Asus B85M-G board. www.asus.com/Motherboards/B85MG/
howz the deal?
I Dont know whether this motherboard can disable those states ?
 
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benjii

benjii

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Oct 29, 2010
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That motherboard will have a feature to disable C states. (I edited my post above in regards to the suitability of your PSU for a new build)
 
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Solution
Q

Quazar98

Honorable
Jul 21, 2013
5
0
10,510


Thanks buddy
I am not planning for any graphics card as of now. Only need system to run visual studio and virtual box.
 
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benjii

benjii

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Oct 29, 2010
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What's your PSU?
 
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